Improvements in apparatus for processing video signals.'This Invention relates to improvements in apparatus for processing Video Signal, TelevisionThat includes a source Video Signal; and a Delay Line coupled to the source of video signals; a Plurality of Signal couplers coupled to the delay Line, a First combinedOr a First amplitude Controller characterized by the first Adder Circuit to derive a Second determining Signal bandwidth from at least one fourth and FifthThe Video Signal delayedEach time being placed in between the first and second delayed video signals; a Second Adder Circuit for combining signals determining bandwidth with PFirst combined Signal to produce a Second combined Signal; a Mixer to selectively combine the first and second Signal bandwidth Determination,To produce a Third Signal of determination of bandwidth that includes portions of the first and second amplitude controlled setting of Signal bandwidthAnd a Third Adder Circuit to combine the Third determination

摘要

A delay line suitable for television video signals is included in the luminance channel of a television video signal processing apparatus. A plurality of taps are coupled to the delay line for developing a plurality of delayed video signals. At least a first and a second of the delayed video signals are combined in first combining means to produce a first combined signal which determines the peaking characteristics of the luminance channel. A bandwidth determining signal is derived from at least a third one of the delayed video signals located in time between the first and the second delayed video signal. A second bandwidth determining signal is derived from at least a fourth and a fifth of the delayed video signals located in time between the first and the second delayed video signals. One of the bandwidth determining signals and the first combined signal are combined in a second combining means to produce a second combined signal. The first and second bandwidth determining signals are combined to produce a third bandwidth determining signal which includes controllable amplitude portions of the first and second bandwidth determining signals. The third bandwidth determining signal controls the overall bandwidth characteristics of the luminance channel. The third bandwidth determining signal and the second combined signal are combined to produce an output signal. In one embodiment, the formation of the third bandwidth determining signal is dynamically controlled in response to a signal representing the amount of color information contained in the video signals so as to increase the bandwidth of the luminance channel when the amount of color information is relatively low to thereby improve the fine detail resolution and transient response of the receiver.